In order to improve the degradation of organic dye wastewater,Bi2O2CO3/g-C3N4 nanofibers were prepared with melamine and bismuth nitrate pentahydrate as raw materials by electrospinning.The morphology,structure and optical properties were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM) and ultraviolet spectrophotometer.Under simulated visible light,the photocatalytic decolorization and chemical stability of Bi2O2CO3/g-C3N4 for methylene blue were studied.The results showed that the catalytic degradation rate of Bi2O2CO3/g-C3N4 reached 83.2%,which was twice that of g-C3N4.The catalytic activity of the catalyst had no obvious loss after repeated use for 5 times.
[1] Fujishima A,Honda K.Electrochemical photolysis of water at a semiconductor electrode[J].Nature,1972,238:37-38.
[2] Huang Q L,Huang Y,Xiao C F,et al.Electrospun ultrafin fibrous PTFE-supported ZnO porous membrane with selfcleaning function for vacuum membrance distillation[J].Journal of Membrance Science,2017,534:73-82.
[3] Duan Y.Facile preparation of CuO/g-C3N4 with enhanced photocatalytic degradation of salicylic acid[J].materials Research Bulletin,2018,105:68-74.
[4] Ullah R,Dutta J.Photocatalytic degradation of organic dyes with manganese-dopped ZnO nanoparticles[J].Journal of Hazardous Materials,2008,156:194-200.
[5] Ji B,Zhang J,Zhang C,et al.Vertically-aligned ZnO@ZnS nanorod chip with improved photocatalytic activity for antibiotics degradation[J].ACS Applied Nano Materials,2018,1:793-799.
[6] Nasseh N,Taghavi L,Barikbin B,et al.Synthesis and characterizations of a novel FeNi3/SiO2/CuS magnetic nanocomposite for photocatalytic degradation of tetracycline in simulated wastewater[J].Journal of Cleaner Production,2018,179:42-54.
[7] Yu D Z,Cai R X,Liu Z H.Studies on the photodegradation of rhodamine dyes on nanometer-sizes zinc oxide[J].Pectrochimica Acta Part A:Molecular and Biomolecular Spextroscopy,2001,60(7):1617-1624.
[8] handay W,Hameed B.Zeolite-hydroxyapatite-activated oil palm ash composite for antibiotic tetracycline adsorption[J].Fuel,2018,215:499-505.
[9] Fan G,Ma Z,Li X,et al.Coupling of Bi2O3 nanoparticles with g-C3N4 for enhanced photocatalytic degradation of methylene blue[J].Ceramics International,2021,47:5758-5766.
[10] Zhang L,Wang G,Xiong Z,et al.Fabrication of flower like direct Z-scheme ß-Bi2O3/g-C3N4 photocatalyst with enhanced visible light photoactivity for rhodamine B degradation[J].Applied Surface Science,2018,436:162-171.
[11] He R,Zhou J,Fu H,et al.Room-temperature in situ fabrication of Bi2O3/g-C3N4 direct Z-scheme photocatalyst with enhanced photocatalytic activity[J].Applied Surface Science,2018,430:273-282.
[12] Zhao W,Yang G,Wang S,et al.A novel ternary plasmonic photocatalyst:ultrathin g-C3N4 nanosheet hybrided by Ag/AgVO3 nanoribbons with enhanced visible-light photocatalytic performance[J].Applied Catalysis B:Environmental,2015,165:335-343.
[13] Wang Y,Zhao S,Zhang Y,et al.One-pot synthesis of K-doped g-C3N4 nanosheets with enhanced photocatalytic hydrogen production under visible-light irradiation[J].Applied Surface Science,2018,440:258-265.
[14] Liu S,Zhu H,Yao W,et al.One step synthesis of P-doped g-C3N4 with the enhanced visible light photocatalytic activity[J].Applied Surface Science,2018,430:309-315.
[15] Ge L,Han C,Liu J.Novel visible light-induced g-C3N4/Bi2WO6 composite photocatalysts for efficient degradation of methyl orange[J].Applied Catalysis B:Environmental,2011,108:100-107.
[16] Ge L,Han C.Synthesis of MWNTs/g-C3N4 composite photocatalysts with efficient visible light photocatalytic hydrogen evolution activity[J].Applied Catalysis B:Environmental,2012,117-118:268-274.
[17] Zhang J,Fu J,Wang Z,et al.Direct Z-scheme porous g-C3N4/BiOI heterojunction for enhanced visible-light photocatalytic activity[J].Journal of Alloys and Compoundsis,2018,766:841-850.
[18] Xu J,Wang Z,Zhu Y.Enhanced visible-light-driven photocatalytic disinfection performance and organic pollutant degradation activity of porous g-C3N4 nanosheets[J].ACS Applied Materials & Interfaces,2017,9:27727-27735.
[19] Shan W,Hu Y,Bai Z,et al.In situ preparation of g-C3N4/bismuth-based oxide nanocomposites with enhanced photocatalytic activity[J].Applied Catalysis B:Environmental,2016,188:1-12.
[20] Kumar A,Kumar A,Sharma G,et al.Biochar-templated g-C3N4/Bi2O2CO3/CoFe2O4 nano-assembly for visible and solar assisted photo-degradation of paraquat,nitrophenol reduction and CO2 conversion[J].Chemical Engineering Journal,2018,339:393-410.
基金资助
山东省高等学校优秀青年创新团队支持计划(2019KJD011);山东省高等学校科研计划项目(J18KA103);山东省自然科学基金项目(ZR2021ME246)
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